help to register onTest mocks

[evaMadrazo]

Hello! I am trying to use the onTest context to define the default testing mocks. I am able to get that mocks in my tests, however, I struggle to register a new mock.
I would expect to be able to modify them in specific scenarios. Is there anything I'm missing setting up these tests, or is the .onTest context behaving differently than expected?
I setup this example. testDefault and testResolved succeed, but testRegister 1 2 3 fails.

I am using 2.5.3

class MyFactoryTests: XCTestCase {
    func testDefault() {
        let modelData = Container.shared.modelData()
        XCTAssertEqual(modelData.games, Container.TestData.games)
    }
    
    func testRegister() {
        Container.shared.modelData.onTest { Container.ModelData(games: Container.TestData2.games) }.reset(.scope)
        XCTAssertEqual(Container.shared.modelData().games, Container.TestData2.games)
    }
    
    func testRegister2() {
        Container.shared.modelData.register { Container.ModelData(games: Container.TestData2.games) }
        XCTAssertEqual(Container.shared.modelData().games, Container.TestData2.games)
    }

    func testRegister3() {
        Container.shared.modelData.onTest { Container.ModelData(games: Container.TestData2.games) }
        XCTAssertEqual(Container.shared.modelData().games, Container.TestData2.games)
    }
    
    func testResolved() {
        let resolved = Container.shared.modelData.onTest { Container.ModelData(games: Container.TestData2.games) }.resolve()
        XCTAssertEqual(resolved.games, Container.TestData2.games)
    }
}

extension Container {
    var modelData: Factory<ModelData> {
        self { ModelData() }
            .onTest { ModelData(games: TestData.games) }
    }
    
    struct ModelData {
        var games: [Int] = []
    }

    struct TestData {
        static let games: [Int] = [1,2,9]
    }

    struct TestData2 {
        static let games: [Int] = [1,2]
    }
}

Thanks in advance